| in the short to medium term | 7 | temporal |
| commercially | 5 | manner |
| with sufficient research funding | 2 | other |
| fuel → be → possible | 10 |
| fuel → be → viable | 6 |
| fuel → be → capable | 3 |
| negative | neutral | positive |
| 0.168 | 0.521 | 0.310 |
| Raw frequency | 19 |
| Normalized frequency | 0.358 |
| Modifier score | 0.000 |
| Perplexity | 498.642 |